Lock



S. SEGAL.

LOCK.

APPLlCATlON FILED JULY 21, E919.

Patented 32111. H), 1.922"

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LOCK.

Specification of Letters Patent.

application filed July 21, 1919.- Serial 1T0. 312,251.

T 0 all whom it may concern.

Be it known that l, SAMUEL Snoan, a citizen of the United States, and a resident of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Locks, of Which the following is a specification.

My invention has for its object the production of a lock of extreme simplicity of construction and of positiveness of operation which shall be adapted to efiectively pen form its locking function and which shall also be adapted to be applied to doors either of the swingin or sliding type.

Other and Iurther objects of the invention will appear from the accompanying de scription, the invention consisting in the novel parts and combinations of parts hereinafter more particularly described and then specified in the claims.

In the accompanying drawing showing a practical embodiment of the invention: 7

Fig. 1 is a front elevation of my improved look as applied to a door.

Fig. 2 is a. side elevation of the lock and a cross-section through the door.

Fig. 3 is a vertical section on the line 3-3 of Fig. 2.

Fig. 4 is a horizontal section on the line 4-4 of Fig. 3. r

Fig. 5 is a perspective view of my i1nproved keeper.

Referringin detail to the several. figures of the drawing:

1 indicates a door, either of the swinging or sliding type and 2 the door jamb. The casing 3 containing the locking mechanism is provided with a removable cover 4 and is fastened to the inner face of the door in any desired manner preferably by screws as shown. lhe end of the casing 3 extends inwardly over the space between the door and door jamb a distance sutlicient to prevent interference or tampering with the locking mechanism within the casing by the insertion of a jimmy or other tool within the space and which, on account of the cutaway portion 5 with which an end of the casing is provided, might ordinarily be possible if the casing were not so positioned.

When the casing is fastened to the door in the position shown, a tool inserted within the space between the door and door jamb would merely strike the casing itself and would not interfere with the mechanism therein.

6, 7 indicate opposed locking bolts pivotally mounted at their ends, as at 6 '7 within the casing 3. Said locking bolts, adjacent their pivoted ends, are thickened or enlarged as indicated at 8, 9 and their opposite ends terminate in hooks 10, 11 having curved edges as illustrated. Said locking bolts 6, 7 are connected together by a spring 12 the action of which tendsto draw them, or cause them to swing, towards each other on their pivots into engagement with a stop 13 which is fastened to or made a part of the inner wall of the casing. Said stop 13 is provided with squared projecting fingers 1d, 14; fitting within the squared indentations or notches 15, 15 with which the locking bolts are provided. The purpose of providing these projecting fingers and indentations engaging or interfitting with each other when the locking bolts are in normal or locked position, or that position clearly shown in Fig. 3, is to prevent the pivots 6' 7' being subjected to too much strain in the event that the casing has not been properly positioned on the door and a tool has been inserted in the space between the door and door jamb and in the cut-away portion 5 and lateral pressure applied to the locking bolts to displace them in an endeavor to break the lock.

My improved keeper which is adapted to be engaged by the hooked ends 10, 11 of the locking bolts comprises an angle piece 16 which is secured to the corner of the door janib by suitable screws or otherwise and preferably countersunk therein and which forms a base plate for the keeper, an upright member 17 which in the preferred form of the invention is substantially parallel to one side or face of said base plate and connected to said side by a transverse member 18, said upright or parallel member being provided with inclined outer surfaces or sides 17 extending in opposite directions and flanges extending upwardly and downwardly from the transverse member 18.- All of said parts are preferably integral and they cooperate together to form upperand lower pockets, as is clear from an inspection of Fig. 5, for the reception of the hooked ends 10 and 11 of the locking bolts 6 and 7 which interlock therewith.

Patented Jan. 1 8 1922.

20 indicates the IitCG plate and 21 themes- .bler barrel of a cylinder lock of the well from the tumbler-barrel 21 and through the cam 23, which it is adapted to actuate, is the operating spindle 2 1. Said operating spindle also extends into the hollow latch knob 25 which is mounted in the cover i of the casing and through the cam 26 which it is adapted to actuate and which is carried' with' in the casing by the shank of the knob on which it mounted. As the cams 23 and 26 engage. the thickened partsof the locking bolts 6 and 7, these bolts may be operated by meanso't' a key inserted in the face plate '20 of the cylinder lock and turned therein or by turning the latch knob 25 on the inside of the door, whereby the cams 23 and 26 are actuated by means of the operating spindle 24 and the locking bolts 6 and 7' are forced by the cams to swing on their pivots away from each otherragainst the action of the spring 12' thereby lifting their hooked ends 10, 11 out of engagement with the keeper. The locking bolts may be retained or held in unlocked position by a turning of the'cams 23 and 26 to a position whereby the highest points of their cam surfaces are in vertical alignment or to a position at right angles to that shown in Fig. 8.

-When the door is open and the locking bolts are in normal position or that position shown in Fig. 3, the door may beiautomatically-locked by merely closing the same with out it first being necessary to manually spread the bolts or movethem away from each other@ In'the'case of a swinging door, i

upon closing the same, the' hooked ends 10 and 11 01": the locking bolts strike forwardly against the inclined surfaces 17' of the ver tically extending member 17 of the keeper along which they ride, against the action of the spring 12, until they clear the top edges of said inclined surfaces, when they will be forced automatically by the action of the spring into the pockets of the keeper hereinbefore described. In the case'ot a sliding door, upon closing the same the curved edges bolts strike laterally against the flanges 19 of the transverremember 18 of the keeper which forces the locking bolts apart until the hooked ends fall into the pockets of the kee er in an'obvious manner.

' a When the hooked ends of the locking bolts are Qwithin and are interlocked with said pockets they fit snugly intermediate the base plate of the keeper and the upright member 1:? thereof and a side of each of said hooked ends engages or is immediately adjacent to meninges 19 01? the keeper. Therefore, as is obvious, whensaid hooked en ds are interlocked with said pockets a movement of the flanges. extending upwardly and downwardly vfrom said transverse member'to ior m pockets, of a pair of pivoted locking bolts having hooked ends adapted to interlockwith the pocketg "formed in said keeper whereby any movement'of said locking bolts except a pivotal one is prevented. I i

2. In a lock, he combination with a keeper, of a casing, a pair oflockingbolts pivoted within said casing and provided with squared indentations therein and with hooked ends, a stop wlthin said casing and between' aid locking bolts, squared fingersv on said stop adapted to engage and to inter fit with said indentations to prevent alateral displacement of said locking bolts and aspring connecting said locking bolts and tending by its action to force them to engage said stop, said hooked ends of said" locking bolts beingadapted teammate U cally interlock with said keeper upon eng gement therewith. v e 3. In a lock, the combination ith a keeper comprising a base plate", an upright member, a transverse member 10111111g'52t1d upright member with the'base plate and flanges extending upwardly' and downwardly from said transversemember to form pockets, of a pair ofseparated' pivoted locking bolts having meansv tending to draw them together, said locking bolts being adapted to interlock with the pockets "formed in said keeper, whereby any movement of i said lockingbolts except apivotal one is prevented.

In a keeper comprising a base plate, an upright member, a transverse member joining-said upright member with the base jplateand flanges extending upwardly and downwardly from said transverse member to form pockets, of a pair of pivoted locking bolts lock. the combination with'a having hooked ends, a stop between said lockin-g bolt and a spring" connecting the same and tending by its'actiont'o force them to engage said stop, sai'd hooked. ends. of

said locking bolts being adapted toi'z iuto matically interlock with the pocketsof the said keeper upon engagement therewith whereby any mov em'e'n't'oi said locking bolts except a pivotal one is-prev'ented.

In alock, the ombi at-ion with :a

keeper comprising a base plate, an" upright member provided was inclined sides, a

transverse member joining said upright whereby any movement of said locking bolts member with said base plate and flanges eX- except a pivotal one is prevented. tending upwardly and downwardly from Signed at New York, in the county of said transverse member t "form pockets, of New York and State of New York, this 19th 5 a pair of pivoted locking bolts having day of July, A. D. 1919.

hooked end with curved edges, the hooked ends of said locking bolts being adapted to SAMUEL SEGAL' automatically interlock with the pockets of Witnesses: said keeper upon engagement of said ends F. B. TOWNSEND,

10 with the inclined sides or flanges thereof IRENE LEFKOWITZ. 

